Finding the Fourth Proportional to 63,123.48, 87,141.98 and 39,257.85

Step by Step Solution

1. Step 1: Write the proportion equation
   63,123.48 : 87,141.98 = 39,257.85 : x
2. Step 2: Convert to fraction form
   63,123.48/87,141.98 = 39,257.85/x
3. Step 3: Cross multiply
   63,123.48x = 87,141.98 × 39,257.85
4. Step 4: Simplify right side
   63,123.48x = 3,421,006,779.54
5. Step 5: Solve for x
   x = 3,421,006,779.54/63,123.48
6. Step 6: Final answer
   x = 54,195.47